The present study aims at assessing, from a theoretical point of view, the feasibility of on-board production and use of Oxy-Hydrogen (HHO) as fuel additive in internal combustion engines. From the available literature, many works deal with the experimental investigation of the benefits achieved with HHO use in both compression and spark ignition engines in terms of brake thermal efficiency improvement and emissions reduction. Nevertheless, a thorough demonstration of the feasibility of HHO on-board production and use has not been performed yet, also due to the unclear nature of the generated HHO mixture. To bridge this gap, a rigorous analysis of the energetic needs related to HHO production through electrolysis, with the internal combustion engine as unique power supply, is here described in details. An innovative assumption is proposed to achieve a generalized representation of HHO mixture and univocally determine the energetic requirements related to its production. A conventional layout is considered to define realistic restrictions for HHO use and fuel savings achievement. Several case studies, based on works available in the literature, are investigated to prove the validity of the proposed analysis and assess the feasibility of the technological approach.
Study of the energetic needs for the on-board production of Oxy-Hydrogen as fuel additive in internal combustion engines
Polverino, Pierpaolo
;D'ANIELLO, FEDERICA;Arsie, Ivan;Pianese, Cesare
2019
Abstract
The present study aims at assessing, from a theoretical point of view, the feasibility of on-board production and use of Oxy-Hydrogen (HHO) as fuel additive in internal combustion engines. From the available literature, many works deal with the experimental investigation of the benefits achieved with HHO use in both compression and spark ignition engines in terms of brake thermal efficiency improvement and emissions reduction. Nevertheless, a thorough demonstration of the feasibility of HHO on-board production and use has not been performed yet, also due to the unclear nature of the generated HHO mixture. To bridge this gap, a rigorous analysis of the energetic needs related to HHO production through electrolysis, with the internal combustion engine as unique power supply, is here described in details. An innovative assumption is proposed to achieve a generalized representation of HHO mixture and univocally determine the energetic requirements related to its production. A conventional layout is considered to define realistic restrictions for HHO use and fuel savings achievement. Several case studies, based on works available in the literature, are investigated to prove the validity of the proposed analysis and assess the feasibility of the technological approach.File | Dimensione | Formato | |
---|---|---|---|
33 Arsie Definitivo.pdf
non disponibili
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
1.44 MB
Formato
Adobe PDF
|
1.44 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
33 Arsie Pre-print.pdf
accesso aperto
Descrizione: 0196-8904/ © 2018 Elsevier Ltd. All rights reserved. Link Editore: https://doi.org/10.1016/j.enconman.2018.09.082
Tipologia:
Documento in Pre-print (manoscritto inviato all'editore, precedente alla peer review)
Licenza:
Creative commons
Dimensione
1.74 MB
Formato
Adobe PDF
|
1.74 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.